﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Class1
    {
        private double r;
        private int chang;
        private int kuang;
        public double R
        {
            get { return this.r; }
            set { this.r = value; }
        }
        public int Ch
        {
            get { return this.chang; }
            set { this.chang = value; }
        }
        public int Ku
        {
            get { return this.kuang; }
            set { this.kuang = value; }
        }
        public double AA(double r)
        {
            return this.r * this.r * 3.14;
        }
        public int AA(int chang, int kuang)
        {
            return this.kuang * this.chang;
        }
    }
}
